An anonymous restaurant in New York City has recently blamed customers’ excessive use of cell phones as the reason for their slow service. The restaurant, which has received complaints about the speed of their service, hired a firm to investigate the cause. The firm compared surveillance footage from 2004 to footage from 2014, and came to the conclusion that the more customers use their cell phones while dining, the slower service becomes. The results were posted on a recently deleted Craigslist post.

The restaurant claims that customers used to take around one hour to complete meals during dinner, but that time has now stretched to around two hours. More and more customers started to send back food for reheating, which the restaurant claims is because they spend so much time on their phones that the food gets cold. The study also revealed that “26 out of 45 customers spend an average of 3 minutes taking photos of food.”

It’s possible that the numbers gained from the study are just a hoax, but this is not the first time a restaurant or chef has spoken out against cell phone usage while dining. French chefs have been lashing out against customers taking photos of their food because it ruins the experience of other diners. Other restaurants have banned cell phones entirely or have created designated areas for cell phone usage.